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PU sole stock solution, preparation method thereof and preparation method of corresponding sole

A stock solution, ethylene glycol technology, applied in footwear, applications, and other household appliances, etc., can solve the problems of poor temperature resistance, poor hydrolysis resistance, inconvenient operation, etc., and achieve a product that is not easy to degumming, good wear resistance, and easy to operate Effect

Active Publication Date: 2020-06-16
温州奕诚鞋材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester sole materials also have their own disadvantages: poor hydrolysis resistance, poor temperature resistance, solid or high-viscosity liquid at room temperature, inconvenient to operate, etc.

Method used

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  • PU sole stock solution, preparation method thereof and preparation method of corresponding sole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The preparation of embodiment 1PU sole stock solution

[0045] Composition of raw materials (parts by weight):

[0046] A component:

[0047] 5 parts of adipic acid;

[0048] 5 parts of ethylene glycol

[0049] MDI 25 parts;

[0050] B component:

[0051] 32 parts of microcrystalline cellulose;

[0052] 12 parts of hydroxymethyl cellulose;

[0053] 0.2 part of whipping agent; Described whipping agent is methylene dichloride;

[0054] 0.1 part of foam stabilizer; the foam stabilizer is PU-1230;

[0055] 1 part pure water;

[0056] C component:

[0057] 2 parts ethylene glycol

[0058] 0.1 part of triethylenediamine.

[0059] The preparation method of PU sole stock solution, comprises the following steps:

[0060] S1. Mix adipic acid and ethylene glycol in proportion and heat to 180°C to react for 2 hours, distill off by-product water, drop to 75°C, add MDI, stir and react for 1 hour to obtain component A;

[0061] S2. Mix microcrystalline cellulose, hydroxym...

Embodiment 2

[0064] The preparation of embodiment 2PU shoe sole stoste

[0065] Composition of raw materials (parts by weight):

[0066] A component:

[0067] 10 parts of adipic acid;

[0068] 10 parts of ethylene glycol

[0069] MDI 45 copies;

[0070] B component:

[0071] 37 parts of microcrystalline cellulose;

[0072] 18 parts of hydroxymethyl cellulose;

[0073] 0.5 part of whipping agent; Described whipping agent is methylene dichloride;

[0074] 0.3 parts of foam stabilizer; the foam stabilizer is PU-1230;

[0075] 2 parts pure water;

[0076] C component:

[0077] 5 parts of ethylene glycol

[0078] 0.2 parts of triethylenediamine.

[0079] The preparation method of PU sole stock solution, comprises the following steps:

[0080] S1. Mix adipic acid and ethylene glycol in proportion and heat to 210°C to react for 3 hours, distill off by-product water, drop to 82°C, add MDI, stir and react for 2 hours to obtain component A;

[0081] S2. Mix microcrystalline cellulose, hyd...

Embodiment 3

[0084] The preparation of embodiment 3PU sole stock solution

[0085] Composition of raw materials (parts by weight):

[0086] A component:

[0087] 5 parts of adipic acid;

[0088] 5 parts of ethylene glycol

[0089] MDI 25 parts;

[0090] B component:

[0091] 32 parts of microcrystalline cellulose;

[0092] 20 parts of hydroxymethyl cellulose;

[0093] 0.2 part of whipping agent; Described whipping agent is methylene dichloride;

[0094] 0.1 part of foam stabilizer; the foam stabilizer is PU-1230;

[0095] 1 part pure water;

[0096] C component:

[0097] 2 parts ethylene glycol

[0098] 0.1 part of triethylenediamine;

[0099] D component:

[0100] 5 parts of anti-yellowing agent; anti-yellowing agent is anti-yellowing agent L9322;

[0101] 2 parts of hardener; the hardener is 3,3'-dichloro-4,4'-diaminodiphenylmethane.

[0102] The preparation method of PU sole stock solution, comprises the following steps:

[0103] S1. Mix adipic acid and ethylene glycol in...

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Abstract

The invention provides a PU (polyurethane) sole stock solution which comprises a component A, a component B and a component C. The component A is prepared from 5-10 parts of adipic acid, 5-10 parts ofethylene glycol, and 25-45 parts of MDI. The component B is prepared from 32-37 parts of microcrystalline cellulose, 12-25 parts of hydroxymethyl cellulose, 0.2-0.5 parts of a foaming agent, 0.1-0.3parts of a foam stabilizer, and 1-2 parts of pure water. The component C is prepared from 2-5 parts of ethylene glycol and 0.1-0.2 parts of triethylene diamine. Cellulose is used as a polyester-etherpolyol material, so that the advantages of good hydrolysis stability, liquid at room temperature, low viscosity, wide foaming range and convenience in operation are achieved, the prepared PU sole stock solution has excellent mechanical properties of high tearing strength, high tensile strength and high tensile rate, the polyether sole stock solution has the characteristics of low viscosity and hydrolysis resistance and has good application value, the prepared PU sole is integrally formed, the adhesive force of the outer sole and the inner sole is large, degumming is not easy to occur, and thepracticability is high.

Description

technical field [0001] The invention relates to the technical field of polymer synthesis, in particular to a PU shoe sole stock solution, a preparation method thereof, and a corresponding shoe sole preparation method. Background technique [0002] Polyurethane resin for shoe soles (polyurethane, PU), also known as polyurethane sole solution, is the raw material for the preparation of polyurethane soles. Its output only accounts for about 5% of all polyurethane products, but it has unique properties in shoe sole materials, rapid development, and irreplaceable cost. of excellent materials. [0003] At present, polypolyols used for PU shoe soles mainly include polyester polyols and polyether polyols. Polyester soles have the characteristics of high strength, good wear resistance, and good adhesion with shoe uppers, occupying more than 80% of the market share of polyurethane sole materials. However, the polyester sole material also has its own disadvantages: poor hydrolysis re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14C08J9/08C08G18/76C08G18/66C08G18/64C08G18/72C08G18/32B29D35/02B29D35/12C08G101/00
CPCB29D35/02B29D35/122C08G18/3206C08G18/3234C08G18/4081C08G18/4238C08G18/6484C08G18/664C08G18/6651C08G18/7671C08J9/08C08J9/145C08J2203/02C08J2203/142C08J2203/184C08J2375/06
Inventor 李滨男
Owner 温州奕诚鞋材有限公司